Successful use of Gremlins power causes a glitch.Having 4 or more net hits on the Gremlins power causes a critical glitch.

A glitch looks like user error, so I don't know that someone would think to look for an outside source of the problems in the first handful of seconds. The 4th use of the power would have occurred less than 5 seconds after the first. The 4th use of the power causes a critical glitch. For a control tower, I think that it's reasonable to assume it shuts the functions down for up to a half hour.